Gyratory structure.



G. W. COMBS.

GYRATORY STRUCTURE.

APPLICATION FILED JULY 21, I908- RENEWED DEC. 13,1915.

Patented May 23,1916.

' 2 SHEETS-SHEET 1.

WITNESSES: JNVENTOR.

G. WLCOMBS.

GYRATOBY STRUCTURE. I APPLICATION FILED JULYZI, 190B. RENEWED mac.13.1915.

1,183,957. Patented May23,19.

2 SHEETS-SHEET 2.

5 v 7 i5 19 a & L137 E I 74? I 22 1 l I i I: .23 z V 73 74% i I I M 1/ El f L ,1? ("6 6/ I} 9 30:%/-J\1 L i WITNESSES: INVENTOR.

ATTORNEY.

GEORGE w. coM s, OFLEAVENWORTH, Kansas.

. am on STRUCTURE.

Specification 'of Letters P tent.

Patented May 23, 1916.

Application filed my 21, 1908, Serial 110.4%,677. Renewed'necember 13,1915 Serial No. 66,664.

To all whom it may concern:

Be it known that I, GEORGE citizen of the United. :States, residing atLeavenworth, in the county of Leavenworth and State of Kansas, haveinventedc'ertain new and useful Improvements in Gyratory also to thebuilding containing the sameon account of the vibration imparted by saidstructure to the building. This excessive throw in gyratory structuresgenerally occurs when starting or stopping the sifter, or before itattains the critical speed of rotation. It also occurs when thestructure becomes unbalanced by being underloaded or overloaded withstock, and when the structure has a rigid connection with the building,as through its drive-shaft and a stationary bearing, considerable strainis imposed upon the building whenever the structure leaves its truegyratory course- I overcome excessive throw of the structure' byproviding novel restraining means mounted independentlyv of saidstructure, embracing a weight and lever, and I relieve the structure andthebuildingof abnormal strain by yieldingly-connecting'. the shaft 'ofsaid structure to the building.

Referring now to the accompanying drawings, which illustrate theinvention, Figure" 1 represents an elevation of the structure-' providedwith my improvements. Fig. 2

is a plan view of a pedestal and a yieldingture through the intermedlacyof a yielding coupling employed in carrying out the: in vention. Fig. 3is a vertical sectiononline III-III of Fig. 2. Figs. 4 and 5 are detailsof the yielding-coupling whereby power is transmitted from the driver tothestructure. Fig. 6 is a detail plan view of therestraining means. Fig.7 is a modifiedform of an eccentric-pin employed in carrying out theinvention. r i

1 designates the gyratory structure, .which I in the present instance,isin the form of a sieve-box freely supportedfrom the ceiling of thebuilding by rods 2, so that it may gyrate, Said. structum v prov dedwithicem w. COMES, a

trally-disposed bearings 3, in which a vertically-positioned drive-shaft4 is j ournaled, said shaft: being provided with eccentric weights 5whereby a gyratory motion is imparted to the structure when the shaft isi rotated.

6 designates. a pin fixed eccentrically to the lower end of the shaft,but having its axis in alinement with: the axis of rotation so that theshaft will rotate around said pin a diameter and rests upon a block 7arranged in, the recess of. a ball 6*, or the ball may be integral withsaid pin as shown in the modifiedform, Fig. 7, wherein 6 designates thepin and 6 the ball.

8 designates a pedestal fixed to an adjawith-a fiuid-chamber 9, acentrally-disposed StepbearingIO', and a concaved'annular seat 11, whichlatter is arranged inside the bearing 10 and spaced a slight distancethere- A from so that the hollow hub 12 of a driver .13may be journaledin bearing 10, asshown in- Fig.- 3. Driver 13, which is stationary sofar as lateral movement'is concerned, has an 12 forms a part: Chamber 15is closed at its upper end by a'lid consisting of a stationary.section16, and a loosely mounted sectionl7,

which latter is movable on the former 'so that it maygyratewiththeeccentric-pin 6.

Driver 13 transmits motion to the struccoupling locatedin chamber 15,consisting of a lower member 18, and an upper memcally-arrangedantifriction rollers 22 jouranaled on a pair of pins 23 projecting fromdriver 13. Member 18 is also provided with a a pair of arms 2&arrangedat right angles to arms 20 and-provided with open slots '25 itoloosely receive a pair of antifriction rollers 26 mounted onpins .21,depending from theends of memberllil, which latter is keyed 75 centportion of the building and provided I r to pin 6, while member 18 has alarge cen- 1 tral opening,28, so that itmay niovelfreely.

without contacting Fwith pin With the couplingconstrlicted andarrangedas above described, it will be understood that when the driverrotates it will'rotate the structure through pin 6, the latter, however,per mitted to gyrate through the interm'ediacy of theyieldingcoupling,while the driver is mounted in a fixed bearin -andhence has no 7 lateral. or gyrat-ory motion. The operation of thecoupling will be attended with but little fricti'onas the weight of thedrivei1 shaft and its weights are "supported by the restraining meanshereinafter described.

The restraining means, referred to, whereby the structure is restrictedfrom abnor mal gyratory motion, consists of independently-supportedweight controlled means having a universal connection with pin 6.

Said means consists ofa lever comprising a socket 29, inwhich ball 6rests, and a rod 30 which latter: may be secured to the socket as shownin 3, or it may beformed integral with said socket. The upper portion 31of said socket is substantially semispherical in form toprovidealubricantchamber 32 and to fit in seat ll, in which it is freeto move in all directions, ball-bearings 33 being interposed between theseat and the socket to reduce the wear to a mini mum. Socket 29 and rod30 are normally held in a vertical position bya pendant weight 34, whichis preferably circular in I claim is.:

plan view and concaved' in cross section so that it will be free to:swing with the socket and'the rod without contacting with the lower endof bearing 10;' e I Should the structure become unbalanced fromany'cause while iii-operation and leave itstrue gyratory path, it willcarrythe' eccentric-pin therewith, and through it, cause the socket 29and weight 34 120 gyrate and' assume the dotted position shown inFig. 3.

The'weight, however, inattempting to resume its normal pos tion w llexerteonsl'derable force on" the restl'tll'lllig' lever, wh ch beingfulcrumed in seat 11 and pushing against the pin in a plane with pointB,

multiplies the restraining force of the weight in' proportion to thedifference in the distance between the fulcrum point and point B, andbetween point" B and the weight 34. The resistance ofiered by thelubricant in chamber 9, to. the upward movement of weight '34,materially assists I said weight in restraining the structure fromabnormal throw.

Having thus 1. In combination a gyratory structure,

a stationary support, weight-controlledlrestraining means between; thestructureand said stationary support whereby abnormal throw of thestructure is restrictedfa' chamdescribed my "invention, what ber inwhich said controlling means is free toswing, andv fluid in said chamberto ofier resistanc'eto said controlling means.

2. In combination, a gyratory structure, means for preventing rotationof said structure, a stationary-support, weight-controlled restrainingmeans between the structure and the stationary support whereby abnormalthrow of said structure is restricted, av chamcontrolling means is freeto swing, and fluid in said chamber to ofli'er'resistance to saidcontrolling means.

4. In combination, a gyratory structure, a driver therefor, a stationarybearing for said driver, a weight controlled lever mounted independentlyof the structure whereby excessive throw of the latter is restricted,andfa pedestal inclosing said leverand provided with a seat therefor.

5. In. combination, a gyratory structure, a driver therefor, a levermounted independently of'said structure and the driver, means yieldinglyconnecting said lever and the structure, a weight fixed to said leverfor restricting excessive throw of the structure, and a pedestalembodying a seat for I said lever and a bearing for the driver.

6. In combination, a suspended body, a shaft arranged therein andweighted to produce a gyratory movement, a fixedly-m'ounted drivertherefor, a suspended support for said shaft which is weighted torestrain abnormal throw' of the suspended body, and

a ball-and-socket connection between the shaft and'said suspendedsupport.

7. In combination, a suspended body, an eccentrically-weighted shafttherefor, a driver for the shaft, and'a suspended lever for supportingsaid shaft which, is weighted to restrain abnormal throw of thesuspended body, said lever being normally in axial alinem'ent with theshaft.

8. In combination, a gyratory structure,

a driver therefor, a stationary bearing for said drlver,andweight-controlled restraining means also supported by said bearing,

for the purpose described.

9.) In combination, a gyratory structure, a shaft therefor, weightsconnected to. said shaft whereby it is given a tendency when means forsupporting the shaft. I

10; In' combination, a suspended body, a

in motion to travel in a gyratory path, a driver for said shaft, abearing for said. driver, and weight-controlled restraining shafttherefor," eocentrically i mounted weights on saidrsha'ft whereby it isgiven a I of the shaft and its weights.

11. In combination, a gyratory sieve-box, a shaft mountedtherem, adriver surrounding the axis of movement, a support for the shaftindependent of the sieve-box and the driver consisting ofweight-controlled restraining means having a universal connection withthe shaft, and a suitable support for said restraining means.

12. In combination, a gyratory structure, a shaft therefor, a driverprovided with a lubricantchamber, weight-controlled restraining means insaid chamber loosely connected to the shaft to restrain abnormal throwof the structure, and a yielding-coupling also in said chamber forconnecting the shaft and the driver.

13. In combination, a gyratory structureaa driver therefor, a fixedbearing for said driver, yielding connections between the structure andsaid driver, and weight-controlled means suspended independently of thestructure whereby the latter is restrained from abnormal throw.

14. In combination, a gyratory structure, a shaft therefor, a driverprovided with a lubricant-chamber, a fixed bearing for said driver,weight-controlled restraining means extending into said chamber forrestricting excessive throw of the structure, movable means in thechamber connecting the driver and the shaft, and a lid for closing thetop of the chamber 15. In combination, a suspended body, a shaft forimparting a gyratory motion thereto, said shaft being free to movevertically to a limited extent, and weight-controlled means forrestricting abnormal throw of the suspended body, said means beingloosely suspended and yieldinglyconnected to the shaft to move the samevertically and gyrate therewith.

. 16. In combination, a gyratory structure, a shaft for driving thesame, an independently freely mounted socket supporting said shaft, anda Weight pendant from the socket for restricting the throw of thestructure.

17. In combination, a gyratory structure, a vertically-positioned shaftfor driving the same, an independently freely mounted lever embracing asocket for supporting the shaft, and a weight pendant from said leverfor restricting the throw of the structure.

18. In combination, a gyratory structure, a shaft for driving the same,a driver for said shaft, an independently freely mounted socketsupporting said shaft, a rod fixed to said socket and dependingtherefrom, and

a weight carried by saidrod for restricting the throw ,of-[thestructure. i

v19. In combinatioma gyratorystructure,

a shaft for driving the same, apedestal -em-' embodying a socket forsupporting the shaft, and a weight pendant from the lever and arrangedin the lubricant-chamber for restricting the throw of the structure.

20. In combination, a gyratory structure, a shaft for driving the same,a pedestal embodying a lubricant-chamber, and an annular seat, a socketfreely mounted in said seat and supporting the shaft, and a weightpendant from the socket and arranged in the lubricant-chamber forrestricting the throw of the structure.

21. In combination,a gyratory structure, a shaft for driving the same, astep-bearing embracing an annular concaved seat, a segmental-sphericalsocket freely mounted in saidseatand supporting the shaft, said sockethaving a lubricant-chamber surrounding the adjacent terminal of theshaft, and a weight pendant from said socket for restricting the throwof the structure.

22. In combination, a gyratory structure,

a shaft for driving the same, an independently freely mounted socketsupporting said shaft, a weight pendant from the socket for restrictingthe throw of the structure, and a driver for the shaft provided with ahollow hub through which the socket extends.

23. In combination, a sieve-structure, a shaft for driving the same, anindependently freely mounted lever embodying the socket for supportingsaid shaft, a weight pendant from said lever for restricting the throwof the structure, and a driver for the shaft provided with a hollow hubthrough which the lever extends.

24. In combination, a gyratory structure,

a shaft therefor, a driver for said shaft em-- bracing alubricant-chamber, a step-bearing provided with a lubricant-chambercommunicating with the chamber in the driver, a socket freely mounted inthe step-bearing to support the shaft, said socket having alubricant-chamber surrounding the adjacent end of the shaft andconnnunicating with the chamber in the driver, and a weight fixed tosaid socket in axial alinement therewith for restricting the throw ofthe strucv ture.

25. In combination, a gyratory structure, a shaft for driving the same,an independently freely mounted socket, a ball loosely mounted in saidsocket for supporting the shaft. a weight fixed to the socket forrestricting the throw of the structure, and a driver for said shaft.

26. In combination, a gyratory structure, a shaft for driving theseme,an independ- 1 ently freely mounted socket, a ball loosely In testimonywhereof I aflix my signature,

mounted in said socket having a recess, 'a, in the IPIBSBIICQ of twowitnesses. blockin said recess and upon which the lower terminal of theshaft rests, a weight GEORGE COMBS. pendant from, the socket forrestricting the Witnesses:

throw of thelstructure, and means for driv- G. D. OBERSOHELP,

C. S. MOAK."

Copies of this patent niay bdobtained tor'fivc cents each ty addr'essmgthe Commissioner of Patents. wflhllltol, 13.0."?

ing the shaft.

